/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright ( C ) STMicroelectronics SA 2014
* Authors : Benjamin Gaignard < benjamin . gaignard @ st . com >
* Fabien Dessenne < fabien . dessenne @ st . com >
* for STMicroelectronics .
*/
#ifndef _STI_COMPOSITOR_H_
#define _STI_COMPOSITOR_H_
#include <linux/clk.h>
#include <linux/kernel.h>
#include "sti_mixer.h"
#include "sti_plane.h"
#define WAIT_NEXT_VSYNC_MS 50 /*ms*/
#define STI_MAX_MIXER 2
#define STI_MAX_VID 1
enum sti_compositor_subdev_type {
STI_MIXER_MAIN_SUBDEV,
STI_MIXER_AUX_SUBDEV,
STI_GPD_SUBDEV,
STI_VID_SUBDEV,
STI_CURSOR_SUBDEV,
};
struct sti_compositor_subdev_descriptor {
enum sti_compositor_subdev_type type;
int id;
unsigned int offset;
};
/**
* STI Compositor data structure
*
* @ nb_subdev : number of subdevices supported by the compositor
* @ subdev_desc : subdev list description
*/
#define MAX_SUBDEV 9
struct sti_compositor_data {
unsigned int nb_subdev;
struct sti_compositor_subdev_descriptor subdev_desc[MAX_SUBDEV];
};
/**
* STI Compositor structure
*
* @ dev : driver device
* @ regs : registers ( main )
* @ data : device data
* @ clk_compo_main : clock for main compo
* @ clk_compo_aux : clock for aux compo
* @ clk_pix_main : pixel clock for main path
* @ clk_pix_aux : pixel clock for aux path
* @ rst_main : reset control of the main path
* @ rst_aux : reset control of the aux path
* @ mixer : array of mixers
* @ vid : array of vids
* @ vtg : array of vtgs
* @ vtg_vblank_nb : array of callbacks for VTG VSYNC notification
*/
struct sti_compositor {
struct device *dev;
void __iomem *regs;
struct sti_compositor_data data;
struct clk *clk_compo_main;
struct clk *clk_compo_aux;
struct clk *clk_pix_main;
struct clk *clk_pix_aux;
struct reset_control *rst_main;
struct reset_control *rst_aux;
struct sti_mixer *mixer[STI_MAX_MIXER];
struct sti_vid *vid[STI_MAX_VID];
struct sti_vtg *vtg[STI_MAX_MIXER];
struct notifier_block vtg_vblank_nb[STI_MAX_MIXER];
};
void sti_compositor_debugfs_init(struct sti_compositor *compo,
struct drm_minor *minor);
#endif
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